TM 11-5820-890-30-4
Section IV. MAINTENANCE PROCEDURES
Subject
Para
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13-14
Operational Check
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13-15
Repair Instructions . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .
13-16
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Power Supply Adapter Chassis (8A2) . . . . . . . . . . . . . . . . . . . .
Instruction Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seal Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J3 or J4 Connector . . . . . . . . . . . . . . . . . . . . . . . . .
J5 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
P1 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sealing Guide Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCL/RMT Rotary Switch (8A2S1) . . . . . . . . . . . . . . . . . . . . . . . . . . .
CR1 Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CR3 or CR4 Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CR3 and CR4 Diode Angle Bracket.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two-Wire Transient Protection Circuit Card Assembly (8A2A1) . . . . . . .
Diode Circuit Card Assembly (8A2A2) . . . . . . . . . . . . . . . . . . . . . . . .
TB1 Terminal Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CR2 Diode on K1 Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
K1 Relay . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CB1 Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Holder for DS1 Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E1 or E2 Binding Post . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J1 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Access Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Adapter Chassis Assembly . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring in Power Supply Adapter Chassis (8A2) . . . . . . . . . . . . . . . . . . . .
13-17
13-18
13-19
13-20
13-21
13-22
13-23
13-24
13-25
13-26
13-27
13-28
13-29
13-30
13-31
13-32
13-33
13-34
13-35
13-36
13-37
13-38
13-39
13-40
13-41
Page
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13-28
13-30
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13-33
13-35
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13-75
13-14. GENERAL.
This section includes the operational check and the repair procedures. The operational check is used to verify
the operation of a repaired power supply adapter. It is also used to verify the symptom of a faulty power supply
adapter. It will identify the troubleshooting chart to be used. When a bad module is identified, replace it using the
procedure in this section.
13-15. OPERATIONAL CHECK.
Perform the operational check found in paragraph 13-9 to verify proper operation of the power supply adapter.
13-16. REPAIR INSTRUCTIONS.
The following instructions apply to all repair tasks unless otherwise noted in the procedure.
a.
Begin procedure with power supply adapter switch CB1 set to OFF.
b. Disconnect any external cables connected to power supply adapter.
c.
Inspect power supply adapter. Replace power supply adapter chassis if the power supply adapter is
physically damaged, such as with a broken connector.
d.
Power supply adapter must be tested after replacement of a module.
13-27
